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Cushion|Lab Grown|IGI

8.51ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG647454568

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG647454568

Diamond specifications and retailer prices

From HK$18,720 HKD
$2,386 USD
As of November 1, 2026
Save HK$96,298 HKD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$115,018 HKD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 8.51ct lab-grown cushion diamond

This 8.51ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647454568 or 647454568. Listed at 14 retailers as of November 1, 2026, with prices from HK$18,720 to HK$115,018, a HK$96,298 spread on the same certified stone. Do Amore Diamonds lists it at HK$115,018. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647454568
Dimensions14.75 × 10.31 × 6.80 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.75 mm10.31 mm8.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647454568
Side View
Table 64.0%Crown 37.7°Girdle: STK-VTKPavilion 36.8°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$115,018 HKD|Low: HK$18,720 HKD|High: HK$122,550 HKD|Avg: HK$45,103 HKD|-6.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 13HK$18,720 HKD
Retailer 16HK$19,387 HKD
Retailer 12HK$20,673 HKD
Retailer 3HK$22,619 HKD
Retailer 5HK$22,894 HKD
Retailer 10HK$25,464 HKD
Retailer 8HK$26,006 HKD
Retailer 15HK$27,225 HKD
Retailer 11HK$35,891 HKD
Retailer 9HK$39,650 HKD
Retailer 4HK$40,653 HKD
Retailer 14HK$54,346 HKD
Retailer 2HK$57,293 HKD
Retailer 6HK$74,730 HKD
Retailer 7HK$98,071 HKD
Do Amore DiamondsHK$115,018 HKD

29 data points across 16 retailers

14 retailersHK$18,720 HKD to HK$115,018 HKD

A
Cheapest Retailer
-
HK$18,720 HKD
$2,386 USD
Final sale: no returns
Retailer 2
-
HK$19,387 HKD
$2,471 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
HK$20,673 HKD
$2,635 USD
View
A
Retailer 4
-
HK$22,619 HKD
$2,883 USD
View
A
Retailer 5
-
HK$22,894 HKD
$2,918 USD
View
A
Retailer 6
-
HK$25,464 HKD
£2,556 GBP
View
A
Retailer 7
-
HK$27,225 HKD
$3,470 USD
View
B+
Retailer 8
-
HK$35,891 HKD
ZAR 73,903 ZAR
View
B+
Retailer 9
-
HK$39,650 HKD
A$7,775 AUD
View
B+
Retailer 10
-
HK$40,653 HKD
£4,080 GBP
View
B
Retailer 11
-
HK$54,346 HKD
$6,927 USD
View
B
Retailer 12
-
HK$57,293 HKD
£5,750 GBP
View
B
Retailer 13
-
HK$74,730 HKD
$9,525 USD
View
Most Expensive
B
Do Amore Diamonds
27-522F630BB · Nov 1
HK$115,018 HKD
$14,660 USD
View
13 more retailers have this diamond
Prices start from HK$18,720 HKDSave up to HK$96,298 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
8.51ct Cushion
HK$18,720 HKD